Examples with MapContext org.apache.commons.jexl3.MapContext used on opensource projects

Example 6 with MapContext

use of org.apache.commons.jexl3.MapContext in project opennms by OpenNMS.

the class JMXMonitor method poll.

/**
 * {@inheritDoc}
 */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> map) {
    final InetAddress ipv4Addr = svc.getAddress();
    PollStatus serviceStatus = PollStatus.unavailable();
    try {
        final Timer timer = new Timer();
        final JmxConnectionManager connectionManager = new DefaultConnectionManager(ParameterMap.getKeyedInteger(map, "retry", 3));
        final JmxConnectionManager.RetryCallback retryCallback = new JmxConnectionManager.RetryCallback() {

            @Override
            public void onRetry() {
                timer.reset();
            }
        };
        try (JmxServerConnectionWrapper connection = connectionManager.connect(getConnectionName(), ipv4Addr, JmxUtils.convertToStringMap(map), retryCallback)) {
            // Start with simple communication
            connection.getMBeanServerConnection().getMBeanCount();
            // Take time just here to get not influenced by test execution
            // time
            final long nanoResponseTime = System.nanoTime() - timer.getStartTime();
            // Find all variable definitions
            final Map<String, Object> variables = Maps.newHashMap();
            for (final String key : map.keySet()) {
                // Skip fast if it does not start with the prefix
                if (!key.startsWith(PARAM_BEAN_PREFIX)) {
                    continue;
                }
                // Get the variable name
                final String variable = key.substring(PARAM_BEAN_PREFIX.length());
                // Get the variable definition
                final String definition = ParameterMap.getKeyedString(map, key, null);
                // Store wrapper for variable definition
                variables.put(variable, ObjectNameWrapper.create(connection.getMBeanServerConnection(), definition));
            }
            // Find all test definitions
            final Map<String, Expression> tests = Maps.newHashMap();
            for (final String key : map.keySet()) {
                // Skip fast if it does not start with the prefix
                if (!key.startsWith(PARAM_TEST_PREFIX)) {
                    continue;
                }
                // Get the test name
                final String variable = key.substring(PARAM_TEST_PREFIX.length());
                // Get the test definition
                final String definition = ParameterMap.getKeyedString(map, key, null);
                // Build the expression from the definition
                final Expression expression = JEXL_ENGINE.createExpression(definition);
                // Store expressions
                tests.put(variable, expression);
            }
            // Also handle a single test
            if (map.containsKey(PARAM_TEST)) {
                // Get the test definition
                final String definition = ParameterMap.getKeyedString(map, PARAM_TEST, null);
                // Build the expression from the definition
                final Expression expression = JEXL_ENGINE.createExpression(definition);
                // Store expressions
                tests.put(null, expression);
            }
            // Build the context for all tests
            final JexlContext context = new ReadonlyContext(new MapContext(variables));
            serviceStatus = PollStatus.up(nanoResponseTime / 1000000.0);
            // Execute all tests
            for (final Map.Entry<String, Expression> e : tests.entrySet()) {
                if (!(boolean) e.getValue().evaluate(context)) {
                    serviceStatus = PollStatus.down("Test failed: " + e.getKey());
                    break;
                }
            }
        } catch (JmxServerConnectionException mbse) {
            // Number of retries exceeded
            String reason = "IOException while polling address: " + ipv4Addr;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        }
    } catch (Throwable e) {
        String reason = "Monitor - failed! " + InetAddressUtils.str(ipv4Addr);
        LOG.debug(reason);
        serviceStatus = PollStatus.unavailable(reason);
    }
    return serviceStatus;
}

Example 7 with MapContext

use of org.apache.commons.jexl3.MapContext in project nutch by apache.

the class JexlIndexingFilter method filter.

@Override
public NutchDocument filter(NutchDocument doc, Parse parse, Text url, CrawlDatum datum, Inlinks inlinks) throws IndexingException {
    // Create a context and add data
    JexlContext jcontext = new MapContext();
    jcontext.set("status", CrawlDatum.getStatusName(datum.getStatus()));
    jcontext.set("fetchTime", (long) (datum.getFetchTime()));
    jcontext.set("modifiedTime", (long) (datum.getModifiedTime()));
    jcontext.set("retries", datum.getRetriesSinceFetch());
    jcontext.set("interval", new Integer(datum.getFetchInterval()));
    jcontext.set("score", datum.getScore());
    jcontext.set("signature", StringUtil.toHexString(datum.getSignature()));
    jcontext.set("url", url.toString());
    jcontext.set("text", parse.getText());
    jcontext.set("title", parse.getData().getTitle());
    JexlContext httpStatusContext = new MapContext();
    httpStatusContext.set("majorCode", parse.getData().getStatus().getMajorCode());
    httpStatusContext.set("minorCode", parse.getData().getStatus().getMinorCode());
    httpStatusContext.set("message", parse.getData().getStatus().getMessage());
    jcontext.set("httpStatus", httpStatusContext);
    jcontext.set("documentMeta", metadataToContext(doc.getDocumentMeta()));
    jcontext.set("contentMeta", metadataToContext(parse.getData().getContentMeta()));
    jcontext.set("parseMeta", metadataToContext(parse.getData().getParseMeta()));
    JexlContext context = new MapContext();
    for (Entry<String, NutchField> entry : doc) {
        context.set(entry.getKey(), entry.getValue().getValues());
    }
    jcontext.set("doc", context);
    try {
        if (Boolean.TRUE.equals(expr.evaluate(jcontext))) {
            return doc;
        }
    } catch (Exception e) {
        LOG.warn("Failed evaluating JEXL {}", expr.getExpression(), e);
    }
    return null;
}

Example 8 with MapContext

use of org.apache.commons.jexl3.MapContext in project nutch by apache.

the class CrawlDatum method evaluate.

public boolean evaluate(Expression expr, String url) {
    if (expr != null && url != null) {
        // Create a context and add data
        JexlContext jcontext = new MapContext();
        // https://issues.apache.org/jira/browse/NUTCH-2229
        jcontext.set("url", url);
        jcontext.set("status", getStatusName(getStatus()));
        jcontext.set("fetchTime", (long) (getFetchTime()));
        jcontext.set("modifiedTime", (long) (getModifiedTime()));
        jcontext.set("retries", getRetriesSinceFetch());
        jcontext.set("interval", new Integer(getFetchInterval()));
        jcontext.set("score", getScore());
        jcontext.set("signature", StringUtil.toHexString(getSignature()));
        // Set metadata variables
        for (Map.Entry<Writable, Writable> entry : getMetaData().entrySet()) {
            Object value = entry.getValue();
            Text tkey = (Text) entry.getKey();
            if (value instanceof FloatWritable) {
                FloatWritable fvalue = (FloatWritable) value;
                jcontext.set(tkey.toString(), fvalue.get());
            }
            if (value instanceof IntWritable) {
                IntWritable ivalue = (IntWritable) value;
                jcontext.set(tkey.toString(), ivalue.get());
            }
            if (value instanceof Text) {
                Text tvalue = (Text) value;
                jcontext.set(tkey.toString().replace("-", "_"), tvalue.toString());
            }
            if (value instanceof ProtocolStatus) {
                ProtocolStatus pvalue = (ProtocolStatus) value;
                jcontext.set(tkey.toString().replace("-", "_"), pvalue.toString());
            }
        }
        try {
            if (Boolean.TRUE.equals(expr.evaluate(jcontext))) {
                return true;
            }
        } catch (Exception e) {
        // 
        }
    }
    return false;
}

Example 9 with MapContext

use of org.apache.commons.jexl3.MapContext in project traccar by tananaev.

the class ComputedAttributesHandler method prepareContext.

private MapContext prepareContext(Position position) {
    MapContext result = new MapContext();
    if (mapDeviceAttributes) {
        Device device = Context.getIdentityManager().getById(position.getDeviceId());
        if (device != null) {
            for (Object key : device.getAttributes().keySet()) {
                result.set((String) key, device.getAttributes().get(key));
            }
        }
    }
    Set<Method> methods = new HashSet<>(Arrays.asList(position.getClass().getMethods()));
    methods.removeAll(Arrays.asList(Object.class.getMethods()));
    for (Method method : methods) {
        if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
            String name = Character.toLowerCase(method.getName().charAt(3)) + method.getName().substring(4);
            try {
                if (!method.getReturnType().equals(Map.class)) {
                    result.set(name, method.invoke(position));
                } else {
                    for (Object key : ((Map) method.invoke(position)).keySet()) {
                        result.set((String) key, ((Map) method.invoke(position)).get(key));
                    }
                }
            } catch (IllegalAccessException | InvocationTargetException error) {
                Log.warning(error);
            }
        }
    }
    return result;
}

Example 10 with MapContext

use of org.apache.commons.jexl3.MapContext in project opennms by OpenNMS.

the class JexlIndexStorageStrategy method getResourceNameFromIndex.

/**
 * {@inheritDoc}
 */
@Override
public String getResourceNameFromIndex(CollectionResource resource) {
    String resourceName = null;
    try {
        UnifiedJEXL.Expression expr = EL.parse(m_parameters.get(PARAM_INDEX_FORMAT));
        JexlContext context = new MapContext();
        m_parameters.entrySet().forEach((entry) -> {
            context.set(entry.getKey(), entry.getValue());
        });
        updateContext(context, resource);
        resourceName = (String) expr.evaluate(new ReadonlyContext(context));
    } catch (JexlException e) {
        LOG.error("getResourceNameFromIndex(): error evaluating index-format [{}] as a Jexl Expression", m_parameters.get(PARAM_INDEX_FORMAT), e);
    } finally {
        if (resourceName == null) {
            resourceName = resource.getInstance();
        }
    }
    if ("true".equals(m_parameters.get(PARAM_CLEAN_OUTPUT)) && resourceName != null) {
        resourceName = resourceName.replaceAll("\\s+", "_").replaceAll(":", "_").replaceAll("\\\\", "_").replaceAll("[\\[\\]]", "_").replaceAll("[|/]", "_").replaceAll("=", "").replaceAll("[_]+$", "").replaceAll("___", "_");
    }
    LOG.debug("getResourceNameFromIndex(): {}", resourceName);
    return resourceName;
}